How can I convert this program which has been done using class to a program done using simple functions and a main function? Please convert the code if possible. Thanks 

import random
	import copy
	from optparse import OptionParser
	boardAlgebra = []
	"""
	Global list to store the board state labels, given by the paper "The Secrets of Notakto" by Plambeck and Whitehead
	http://arxiv.org/pdf/1301.1672v1.pdf
	This will be used by the AI to evaluate board configurations and select moves
	"""
	boardAlgebra = [
	[0,1,2,3,4,5,6,7,8,'c'],
	['X',1,2,3,4,5,6,7,8,1],
	[0,'X',2,3,4,5,6,7,8,1],
	[0,1,2,3,'X',5,6,7,8,'cc'],
	['X','X',2,3,4,5,6,7,8,'ad'],
	['X',1,'X',3,4,5,6,7,8,'b'],
	['X',1,2,3,'X',5,6,7,8,'b'],
	['X',1,2,3,4,'X',6,7,8,'b'],
	['X',1,2,3,4,5,6,7,'X','a'],
	[0,'X',2,'X',4,5,6,7,8,'a'],
	[0,'X',2,3,'X',5,6,7,8,'b'],
	[0,'X',2,3,4,5,6,'X',8,'a'],
	['X','X',2,'X',4,5,6,7,8,'b'],
	['X','X',2,3,'X',5,6,7,8,'ab'],
	['X','X',2,3,4,'X',6,7,8,'d'],
	['X','X',2,3,4,5,'X',7,8,'a'],
	['X','X',2,3,4,5,6,'X',8,'d'],
	['X','X',2,3,4,5,6,7,'X','d'],
	['X',1,'X',3,'X',5,6,7,8,'a'],
	['X',1,'X',3,4,5,'X',7,8,'ab'],
	['X',1,'X',3,4,5,6,'X',8,'a'],
	['X',1,2,3,'X','X',6,7,8,'a'],
	['X',1,2,3,4,'X',6,'X',8,1],
	[0,'X',2,'X','X',5,6,7,8,'ab'],
	[0,'X',2,'X',4,'X',6,7,8,'b'],
	['X','X',2,'X','X',5,6,7,8,'a'],
	['X','X',2,'X',4,'X',6,7,8,'a'],
	['X','X',2,'X',4,5,6,7,'X','a'],
	['X','X',2,3,'X','X',6,7,8,'b'],
	['X','X',2,3,'X',5,'X',7,8,'b'],
	['X','X',2,3,4,'X','X',7,8,'b'],
	['X','X',2,3,4,'X',6,'X',8,'ab'],
	['X','X',2,3,4,'X',6,7,'X','ab'],
	['X','X',2,3,4,5,'X','X',8,'b'],
	['X','X',2,3,4,5,'X',7,'X','b'],
	['X','X',2,3,4,5,6,'X','X','a'],
	['X',1,'X',3,'X',5,6,'X',8,'b'],
	['X',1,'X',3,4,5,'X',7,'X','a'],
	['X',1,2,3,'X','X',6,'X',8,'b'],
	[0,'X',2,'X',4,'X',6,'X',8,'a'],
	['X','X',2,'X',4,'X',6,'X',8,'b'],
	['X','X',2,'X',4,'X',6,7,'X','b'],
	['X','X',2,3,'X','X','X',7,8,'a'],
	['X','X',2,3,4,'X','X','X',8,'a'],
	['X','X',2,3,4,'X','X',7,'X','a'],
	['X','X',2,'X',4,'X',6,'X','X','a']
	]
	class solveTicTacToe:
	def __init__(self):
	global boardAlgebra
	# Add the tranformations of the labeled states to the boardAlgebra list
	self.addTransforms(boardAlgebra)
	# Initialize the game board
	gameBoard = Board()
	# AI goes first
	userTurn = False
	# Loop until no more valid moves
	while(len(gameBoard.validMoves) > 0):
	if (userTurn):
	playerMove = raw_input("Your move: ")
	if playerMove in gameBoard.validMoves:
	# Update the board
	gameBoard.updateMove(playerMove)
	userTurn = False
	else:
	print "Not a valid move, try again"
	else:
	# Search for a move using local search
	AI_Move = self.searchForMove(gameBoard)
	print "AI:", AI_Move
	gameBoard.updateMove(AI_Move)
	userTurn = True
	print "\n", gameBoard.toString()
	# No more valid moves
	if (userTurn):
	print "You won!"
	else:
	print "You completed the last board: AI won"
	def searchForMove(self, gameBoard):
	# Uses local search to search for a board configuration that returns a winning state
	algebraState = gameBoard.getAlgebraState()
	for move in gameBoard.validMoves:
	newBoard = copy.deepcopy(gameBoard)
	newBoard.updateMove(move)
	newAlgState = newBoard.getAlgebraState()
	# Checks if new Board is a winning state
	if newAlgState in ["a", "bb", "bc", "cc"]:
	return move
	# If gets here, no winning move found
	return gameBoard.validMoves[randint(0,len(gameBoard.validMoves))]
	# Add to the boardAlgebra all the transformations of the Tic Tac Toe Algebra lables
	def addTransforms(self, boardAlgebra):
	for board in boardAlgebra:
	tttBoard = list(board)
	# Rotation 90 Degree
	tttBoard90 = list(self.rotateRight(tttBoard))
	tttBoard180 = list(self.rotateRight(tttBoard90))
	tttBoard270 = list(self.rotateRight(tttBoard180))
	# Mirror Image
	tttBoard_mir = list(self.mirrorImage(tttBoard))
	tttBoard90_mir = list(self.mirrorImage(tttBoard90))
	tttBoard180_mir = list(self.mirrorImage(tttBoard180))
	tttBoard270_mir = list(self.mirrorImage(tttBoard270))
	if tttBoard90 not in boardAlgebra: boardAlgebra.append(tttBoard90)
	if tttBoard180 not in boardAlgebra: boardAlgebra.append(tttBoard180)
	if tttBoard270 not in boardAlgebra: boardAlgebra.append(tttBoard270)
	if tttBoard_mir not in boardAlgebra: boardAlgebra.append(tttBoard_mir)
	if tttBoard90_mir not in boardAlgebra: boardAlgebra.append(tttBoard90_mir)
	if tttBoard180_mir not in boardAlgebra: boardAlgebra.append(tttBoard180_mir)
	if tttBoard270_mir not in boardAlgebra: boardAlgebra.append(tttBoard270_mir)
	def rotateRight(self, tttBoard):
	# 90 deg right
	newtttBoard = [0,1,2,3,4,5,6,7,8,tttBoard[-1]]
	if tttBoard[0] == 'X': newtttBoard[2] = 'X'
	if tttBoard[1] == 'X': newtttBoard[5] = 'X'
	if tttBoard[2] == 'X': newtttBoard[8] = 'X'
	if tttBoard[3] == 'X': newtttBoard[1] = 'X'
	if tttBoard[4] == 'X': newtttBoard[4] = 'X'
	if tttBoard[5] == 'X': newtttBoard[7] = 'X'
	if tttBoard[6] == 'X': newtttBoard[0] = 'X'
	if tttBoard[7] == 'X': newtttBoard[3] = 'X'
	if tttBoard[8] == 'X': newtttBoard[6] = 'X'
	return newtttBoard
	def mirrorImage(self, tttBoard):
	# vertical mirror
	newtttBoard = [0,1,2,3,4,5,6,7,8,tttBoard[-1]]
	if tttBoard[0] == 'X': newtttBoard[2] = 'X'
	if tttBoard[1] == 'X': newtttBoard[1] = 'X'
	if tttBoard[2] == 'X': newtttBoard[0] = 'X'
	if tttBoard[3] == 'X': newtttBoard[5] = 'X'
	if tttBoard[4] == 'X': newtttBoard[4] = 'X'
	if tttBoard[5] == 'X': newtttBoard[3] = 'X'
	if tttBoard[6] == 'X': newtttBoard[8] = 'X'
	if tttBoard[7] == 'X': newtttBoard[7] = 'X'
	if tttBoard[8] == 'X': newtttBoard[6] = 'X'
	return newtttBoard
	class Board:
	def __init__(self, dictBoard = {}, validMoves = []):
	# Initialize Board
	if dictBoard == {}:
	initialBoard = [0, 1, 2, 3, 4, 5, 6, 7, 8]
	self.dictBoard = {'A' : list(initialBoard), 'B' : list(initialBoard), 'C' : list(initialBoard)}
	# Initialize valid moves
	self.validMoves = ["A0","A1","A2","A3","A4","A5","A6","A7","A8",
	"B0","B1","B2","B3","B4","B5","B6","B7","B8",
	"C0","C1","C2","C3","C4","C5","C6","C7","C8"]
	else:
	self.dictBoard = dictBoard
	self.validMoves = validMoves
	def updateMove(self, move):
	boardLetter = move[0]
	boardNumber = int(move[1])
	self.dictBoard[boardLetter][boardNumber] = 'X'
	self.validMoves.remove(move)
	#Check for dead board
	if (self.checkTicTacToe(boardLetter)):
	# Remove all instances of the board in validMoves
	self.validMoves = [x for x in self.validMoves if not boardLetter in x]
	# Delete board from gameboard dictionary
	del self.dictBoard[boardLetter]
	# Check for dead boards
	def checkTicTacToe(self, letter):
	if letter in self.dictBoard:
	# If subBoard is in boardAlgebra, it is not a dead board
	if any(item[:-1] == self.dictBoard[letter] for item in boardAlgebra):
	return False
	return True  #if it is not in boardAlgebra, it is a dead board
	# Return the overall algebra state of the board
	def getAlgebraState(self):
	algA = 1
	algB = 1
	algC = 1
	for item in boardAlgebra:
	if 'A' in self.dictBoard and item[:-1] == self.dictBoard['A']:
	algA = item[-1]
	if 'B' in self.dictBoard and item[:-1] == self.dictBoard['B']:
	algB = item[-1]
	if 'C' in self.dictBoard and item[:-1] == self.dictBoard['C']:
	algC = item[-1]
	# Reduce Algebra States
	algebraState = ""
	if algA != 1:
	algebraState += algA
	if algB != 1:
	algebraState += algB
	if algC != 1:
	algebraState += algC
	# Sort joined states in alphabetical order
	algebraState = ''.join(sorted(algebraState))
	oldAlgState = algebraState
	# Reduce until no changes
	while True:
	algebraState = algebraState.replace("aa","")
	algebraState = algebraState.replace("bbb","b")
	algebraState = algebraState.replace("bbc","c")
	algebraState = algebraState.replace("ccc","acc")
	algebraState = algebraState.replace("bbd","d")
	algebraState = algebraState.replace("cd","ad")
	algebraState = algebraState.replace("dd","cc")
	algebraState = ''.join(sorted(algebraState))
	if algebraState == oldAlgState:
	break
	oldAlgState = algebraState
	return algebraState
	# Print out the Board
	def toString(self):
	s = ""
	for row in range(-1,3):
	if 'A' in self.dictBoard:
	if row == -1:
	s += "A:    "
	else:
	for col in range(0,3):
	s += str(self.dictBoard['A'][col+(row*3)]) + " "
	s += " "
	if 'B' in self.dictBoard:
	if row == -1:
	s += "B:    "
	else:
	for col in range(0,3):
	s += str(self.dictBoard['B'][col+(row*3)]) + " "
	s += " "
	if 'C' in self.dictBoard:
	if row == -1:
	s += "C:    "
	else:
	for col in range(0,3):
	s += str(self.dictBoard['C'][col+(row*3)]) + " "
	s += "\n"
	return s
	if __name__ == "__main__":
	solveTicTacToe()